trickiest

/T R IH1 K IY0 AH0 S T/
adjective
  1. 1

    Hard to deal with, complicated

    โ€œThey were in a tricky situation.โ€

  2. 2

    Adept at using deception

    โ€œA tricky salesman can sell anything.โ€

  3. 3

    Relating to or associated with a prostitution trick

    โ€œI don't want any of your tricky money, thank you!โ€

Source: https://en.wiktionary.org/wiki/trickiest, https://en.wiktionary.org/wiki/tricky